Finding the Fourth Proportional to 218,709.14, 326,865.35 and 159,669.14
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Solution
The fourth proportional to 218,709.14, 326,865.35 and 159,669.14 is: 238,628.84
Step by Step Solution
- Step 1: Write the proportion equation
218,709.14 : 326,865.35 = 159,669.14 : x - Step 2: Convert to fraction form
218,709.14/326,865.35 = 159,669.14/x - Step 3: Cross multiply
218,709.14x = 326,865.35 × 159,669.14 - Step 4: Simplify right side
218,709.14x = 52,190,309,330.30 - Step 5: Solve for x
x = 52,190,309,330.30/218,709.14 - Step 6: Final answer
x = 238,628.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.